Let \(Z \triangleq {\left\Vert  {{{\bf {h}}_k}{{\bf {w}}_k}} \right\Vert ^2} \sim \mathcal {F}\left( {{m_{fk}},{m_{sk}},\bar{z}_{k}} \right) \) , the PDF and CDF of \(Z\)  are given as [1]} and [1]}, respectively.
